ES2739482T3 - Gear for a regulating device in vehicles to regulate two vehicle parts that can be regulated together - Google Patents

Abstract

Gear for an adjusting device (10) in vehicles for adjusting two vehicle parts that can be adjusted with each other, in particular for adjusting two pieces of a seat adjusting device, a window lift or a sliding roof, the gear comprising - a drivable drive worm (30) with a worm gear (32), and - a spindle nut (34), which has a spindle nut gear (36), which is engaged with the gear ( 32) with an endless screw, and an internal thread (38), with which the spindle nut (34) can engage with a threaded spindle (26) of the regulating device (10), - mounting in a mounted manner a casing ( 40) gear the drive worm (30) and the spindle nut (34), characterized in that - the spindle nut (34) is made at least partially of metal and the drive worm (30) of plastic and - the gear housing (40) comprises a first Plastic mounting section (46) for mounting the spindle nut (34) and a second metal mounting section (48) for mounting the drive worm (30), the gear housing (40) presenting a first plastic housing part (42) and a second metal housing part (44), the first mounting section (46) being wholly or partially formed by the first housing part (42) and the second housing section (48) mounting totally or partially by the second casing part (44).

Description

DESCRIPTION

Gear for a regulating device in vehicles to regulate two vehicle parts that can be regulated together

The present application relates to a gear for a regulation device in vehicles to regulate two pieces of vehicle that can be adjusted to each other, in particular to regulate two parts of a seat adjustment device, a window regulator or a sunroof, the gear comprising a drive worm that can be operated with a worm gear, a spindle nut, which has a spindle nut gear, which is engaged with the worm gear, and an internal thread, with the that the spindle nut can be engaged with a threaded spindle of the regulating device, and a gear housing, which is mounted in a mounted manner the drive worm and the spindle nut. Such gears are known from DE 102006011 718 A1. Additional gears are disclosed in EP 1764257 A2 and WO 2015/161714 A1.

The construction space available in a vehicle is limited, so that in almost all vehicle parts it is sought to reduce the dimensions as much as possible. The gears, which are used in the regulation of two vehicle parts that can be regulated, are no exception. However, the smaller the gears, the higher the number of revolutions is required, in order to regulate the two vehicle parts a given travel with the same speed. However, high revolutions lead to high heat development, which in turn can lead to increased wear or even failure of the components in question of the gear, if the heat is not sufficiently evacuated.

In order to allow sufficient heat evacuation, it is known to make the gear housings completely made of metal. Compared to plastic gear housings, the more complex conformation, the increased weight and an increased noise development due to the damping behavior are disadvantageous. Since the gear housings also serve to mount the drive worm and the spindle nut, there are limitations in the choice of material with respect to these elements. Although gear housings can also be produced from a plastic with good thermal conductivity, these plastics are expensive, so they are not suitable for mass production.

The aim of the present invention is to create a gear, whose production is economical and at the same time provides an increased lifespan.

This objective is achieved with the characteristics indicated in claims 1, 11 and 12. Advantageous embodiments are the subject of the dependent claims.

An embodiment of the invention relates to a gear for a vehicle regulation device for regulating two vehicle parts that can be adjusted to each other, in particular for regulating two parts of a seat regulation device, a window regulator or a sliding roof, the gear comprising an endless drive screw operable with a worm gear, a spindle nut, which has a spindle nut gear, which is engaged with the worm gear, and a thread internal, with which the spindle nut can be hooked with a threaded spindle of the regulating device, and a gear housing, which houses the drive worm and the spindle nut. In this regard, the spindle nut is at least partially composed of metal and the plastic drive worm and the gear housing comprise a first plastic mounting section.

a second metal mounting section to mount the drive worm.

Since the spindle nut is composed at least partially of metal, an improved shock behavior is achieved. Spindle nuts, which are made entirely of plastic, frequently fail in the case of forces, which appear in the case of a crash. This is particularly disadvantageous when gears constructed in such a way are used for the regulation of vehicle seats. The vehicle seats can travel uncontrollably in the event of a crash if the spindle nut fails, so that the passengers of the vehicle can be seriously injured.

Since the metal spindle nut is mounted in the first mounting section, which is composed of plastic, a favorable material pairing is created, which manifests itself in particular in less abrasion compared to a metal mount and operates without additional mounting elements. For these reasons it is also advantageous to manufacture the drive worm that is engaged with the plastic spindle nut, for example, PEEK (polyether ether ketone). Consequently, the second mounting section, in which the drive worm is mounted, is metal. In addition to favorable material pairings, using good metal for the second mounting section achieves good heat evacuation from the gear. This is even more applicable, because the drive worm usually rotates clearly faster than the spindle nut. However, in this respect it is not necessary that the first and second mounting sections be designed in such a way that they form in each case a mounting surface of the same material that completely surrounds the spindle nut or the endless drive screw. It is equally possible, by For example, form one half of the metal mounting surface and the other half of plastic.

According to the invention, the gear housing has a first piece of plastic housing and a second piece of metal housing, the first assembly section being formed totally or partially by the first housing part and the second assembly section totally or partially by The second piece of housing. It is absolutely possible to provide the second metal mounting section in the form of sufficiently large bushings, around which the remaining plastic housing is injected. However, this procedure is relatively complex from the point of view of the manufacturing technique, thereby increasing production costs. In this embodiment, no injection of the second metal mounting section is necessary, rather the two housing parts can be suitably joined together. This simplifies manufacturing, which leads to a lower unit price of the gear.

In summary, a gear is provided, in which the spindle nut and the drive worm are mounted in each case with a pairing of metal / plastic material, enabling good evacuation due to the mounting of the worm drive screw in metal of heat This results in an increased service life and reduced noise development of the present gear.

A further embodiment is characterized in that the second mounting section has at least one extension, which is equal to or greater than the maximum diameter of the drive screw.

Also for this embodiment it is applicable that an improved heat evacuation of the gear is possible, which can be made possible in particular because the worm drive screw that rotates more quickly is mounted on the second metal mounting section, which has an extension especially big. This provides, for example, in comparison with a metal bearing bush, a larger metal surface, through which the heat of the gear can be evacuated and emitted to the environment.

According to an improved embodiment, the first housing piece can be inserted into the second housing piece to configure a joint or vice versa. The possibility of introducing the two carcass pieces in one another also simplifies manufacturing, since at the same time a positioning of the two carcass pieces between them is possible by means of a relatively simple working stage. In this regard, a carcass piece can have a reduced oversizing with respect to the other carcass piece, so that a previous fixation by friction drag is already possible, thereby simplifying the next joining stage. In addition, the likelihood of the two housing parts not joining together in the intended manner is reduced. This decreases the rejection fee.

In a further embodiment, the first carcass piece can form first drag means and the second carcass second form drag means, which engage with each other with shape drag to configure the joint. As previously mentioned, it is basically possible to join the two housing pieces together by means of a friction drive. However, the forces that can be transmitted using a friction drag are limited in particular in the case of plastic, since plastic deformation must be prevented during the previous positioning. Therefore, the use of a drag is appropriate, being able to take advantage of the flexibility of the plastic, whereby joints can be provided by elastic insert in a simple manner. Form-dragged connections also have the advantage that they provide the assembler with unequivocal feedback on whether the two housing parts that must be joined have also really joined together as intended.

In an improved embodiment, the first housing part may comprise a first lower cover and a second lower cover, at least one of the lower covers having first positioning means for positioning the first lower cover in relation to the second lower cover. The first housing part assumes mainly the assembly of the spindle nut. The spindle nut usually has a larger diameter compared to the drive worm, so that the use of both lower covers simplifies manufacturing for the following reason: the spindle nut can be placed on the first lower cover and then joined the second lower cover with the first lower cover. Compared to a first piece of one-piece housing, the introduction of the spindle nut is simplified, since no section of the first piece of housing blocks access.

An improved embodiment is characterized in that the first lower cover and the second lower cover can be held together by means of the second housing part. In this embodiment, the second housing piece serves as a means of pre-positioning, so that the next joining stage is simplified, since the two lower covers are already uniquely positioned with each other.

A further embodiment is characterized in that the first lower cover and the second lower cover have the same construction. This reduces the number of different parts of the gear, which can reduce costs.

In a further embodiment, the second housing part comprises a first body and a second body, presenting at least one of the bodies second positioning means to position the first body in relation to the second body. In this way, the assembly is also simplified, since the drive worm can already be finally positioned, before the second housing part is connected to the first housing part.

An improved embodiment is characterized in that the first and / or the second positioning means are configured as spikes and perforations corresponding to them. The use of spikes and perforations that correspond thereto also makes possible an especially simple manufacture, since it is possible to introduce the spikes in the perforations without problems. In addition, the pins can be provided with a certain oversize with respect to the perforations, whereby a certain previous fixation by friction drag can already be provided. In addition, the pins can be used for the definitive joining of the housing parts in question, for example, by hot tapping or by welding the pins in the perforations. In this regard, it is not necessary that the perforations be continuous.

In a further embodiment, the first body and the second body have the same construction. In this way the number of different gear components can also be reduced, which in turn leads to lower costs and simplified storage.

One configuration of the invention relates to a vehicle regulation device for regulating two pieces of vehicle that can be adjusted to each other, in particular for regulating two parts of a seat regulation device, a window regulator or a sunroof, being firmly connected a threaded spindle with the first of the vehicle parts and presenting the regulation device a gear according to one of the embodiments described above, whose spindle nut is engaged with its internal thread with the threaded spindle and whose housing The gear is connected in a resistant manner to the regulation with the second of the vehicle parts in their direction of regulation.

The advantages and technical effects, which can be achieved with the proposed regulating device, correspond to those that have been discussed for this gear. In summary, it is indicated that a gear is provided, in which the spindle nut and the drive worm are mounted in each case with a pairing of material with low noise and metal / plastic friction, being provided due to the mounting of the screw Endless metal drive a good heat evacuation. This results in an increased service life and reduced noise development of the present gear. In this way the functional aptitude of the regulating device is maintained longer and comfort is increased.

An embodiment of the invention relates to a vehicle seat of a vehicle, which can be regulated by means of a regulating device according to the configuration described above. The advantages and technical effects, which can be achieved with the proposed vehicle seat, correspond to those, which have been discussed for this gear. In summary, it is indicated that a gear is provided, in which the spindle nut and the drive worm are mounted in each case with a pairing of material with low noise and metal / plastic friction, being provided due to the mounting of the screw Endless metal drive a good heat evacuation. This results in an increased service life and reduced noise development of the present gear. The vehicle seat can be adjusted for a longer period of time more comfortably.

Exemplary embodiments of the invention will be explained in more detail below with reference to the accompanying drawings. Show

Figure 1, a perspective representation of a regulating device, in this case for a seat adjustment, in which a gear according to the invention can be used,

Figure 2a), a first embodiment of a gear according to the invention in the assembled state by means of a perspective representation,

Figure 2b), the first embodiment by an exploded representation,

Figure 2c), the first embodiment by means of a schematic partial section representation, Figure 3a), a second embodiment of a gear according to the invention in the assembled state by means of a perspective representation,

Figure 3b), the second embodiment by an exploded representation,

Fig. 4a), a third embodiment of a gear according to the invention in the assembled state by means of a perspective representation,

Figure 4b), the third embodiment by an exploded representation, Figure 5a), a fourth embodiment of a gear according to the invention in the assembled state by means of a perspective representation,

Figure 5b), the fourth exemplary embodiment by an exploded representation,

Fig. 6a), a fifth embodiment of a gear according to the invention in the assembled state by means of a perspective representation,

Figure 6b), the fifth embodiment by an exploded representation,

Figure 7a), a seventh embodiment of a gear according to the invention in the assembled state by means of a perspective representation, and

Figure 7b), the seventh example of embodiment by an exploded representation.

A perspective representation of a regulating device 10 is shown in Figure 1, in this case for a seat adjustment, in which a gear 12 according to the invention can be used. The regulating device 10 has a retention plate 14, to which an upper rail 16 is associated. In the retention plate 14, clamping tabs 18 are provided for a drive motor 20, so that the drive motor 20 can be firmly connected with the retention plate 14 and thereby firmly with the upper rail 16. The frame of the vehicle seat not shown in this case is fastened on the upper rail 16. Drive shafts 22 are arranged on both sides of the drive motor 20. These drive shafts 22 establish the connection with the gear 12, which will be described later more exactly. The upper rail 16 slides directly or through adjustment and / or mounting elements not shown on a lower rail 24 fixed to the floor of the vehicle. In the functional situation of the upper rail 16 and the lower rail 24 these are guided in such a way that a hollow space is formed. Within this hollow space a threaded spindle 26 is disposed, which is mounted rotatably on retaining elements 28, which are firmly arranged on the lower rail 24. The threaded spindle 26 acts in conjunction with the gear 12, which is also arranged in the hollow space and is stationary mounted on the upper rail 16. Consequently, the lower rail 14 and the upper rail 16 are an example for two vehicle parts that can be adjusted to each other. In figure 2a) a first embodiment of a gear 121 according to the invention is shown in the fully assembled state and in figure 2b) by an exploded representation. The gear 121 has a drive screw 30, which carries an endless screw 32 in its outer perimeter. In the area of the worm gear 32, the drive screw 30 shown has its maximum diameter D. The drive screw 30 can be rotatably joined with the drive shafts 22 of the drive motor 20 (see Figure 1).

In addition, the gear 12 comprises a spindle nut 34, which in its outer perimeter has a spindle nut teeth 36. In addition, the spindle nut 34 has an internal thread 38, which can be engaged with the threaded spindle 26 shown in Figure 1.

The gear 12 also has a gear housing 40, which in the example shown comprises a first housing part 42 and a second housing part 44. The first housing part 42 forms a first mounting section 46 and the second housing part 44 forms a second mounting section 48. In this regard, the first mounting section 46 forms two first mounting surfaces 50, which in the assembled state come into contact with the ends of the spindle nut 34. Correspondingly, the second mounting section 48 forms two second mounting surfaces 52, which in the assembled state of the gear 12 come into contact with the ends of the endless drive screw 30. In addition, the spindle nut 34 is additionally mounted with its two ends with additional mounting surfaces 53, whose first lower half is formed by the second mounting section 48 and, in a manner not recognizable in Figures 2a) and 2b), whose Upper second half is formed by the first mounting section 46. Therefore, Figure 2c) shows a schematic representation, not to scale, through the gear 121 in the assembled state. In this regard, the first mounting surfaces 50 formed by the first mounting section 46 and the additional mounting surfaces 53 can pass each other without interruption. Alternatively, highlights not shown may be provided. In contrast to this, the lower halves of the first mounting surfaces 50 and the additional mounting surfaces 53 can be clearly differentiated from each other, since, as already mentioned, the lower half of the mounting surfaces 53 is formed by the second mounting section 48. Consequently, the lower half of the additional mounting surfaces 53 is composed of metal. To avoid reinforced abrasion between the second mounting section 48 and the spindle nut 34 in the axial direction and an increased noise development, the first mounting section 46 may project in the axial direction toward the center of the gear housing 40 beyond the second mounting section 48. In addition, the spindle nut 34, as shown, can in each case have a protrusion between the two ends and the spindle nut groove 36. Consequently, the spindle nut 34 is axially supported through its shoulder with the first section 46 of plastic assembly and is not supported with the second mounting section 48, which is advantageous with respect to an axial support with the second metal mounting section 48, in particular because the axially acting forces are usually greater than the forces that They act radially. In the example shown, the plastic drive worm 30 and the spindle nut 34 are made of metal. In this regard, it is also possible that the spindle nut 34 is not constructed entirely of metal, but partly of metal and partly of plastic. The spindle nut 34 is mounted with its two ends in the first mounting section 46, which is composed of plastic. In the example shown, the first mounting section 46 and the first mounting surface 50 are completely formed by the first housing part 42, the first housing part 42 being completely made of plastic. As mentioned further, the spindle nut 34 in this exemplary embodiment is also partially mounted in the second mounting section 48. The first housing part 42 can be produced, for example, in an injection molding process.

As already mentioned, the drive screw 30 is made of plastic and is mounted with its two ends in the second mounting section 48. However, in the example shown, the second mounting surfaces 52 are not formed completely, but only partially by the second housing part 44, which is composed of metal. The second housing part 44 can be produced, for example, in a zinc pressure molding process. The second mounting surfaces 52 are also formed by the first plastic housing part 42. The choice of plastic is oriented in particular in its mounting properties and costs. As suitable plastics, POM (polyoxymethylene), PPS (poly (phenylene sulfide)), PTFE (poly (tetrafluoroethylene)) and LCP (liquid crystalline polymers) have been successful. The second mounting section 48 comprises not only the second mounting surfaces 52, with which the operating drive screw 30 comes into contact, but also the mounting structure, which is necessary to mount the endless screw 30 of drive In this case, the second mounting section 48 comprises the entire second housing part 44. In this regard, the second mounting section 48 has at least one extension E, which is equal to or greater than the maximum diameter D of the endless drive screw 30. In this respect, the extension address is not limited to a certain plane.

For mounting the first embodiment of the gear 121, the spindle nut 34 is inserted into the second housing part 44 and the drive screw 30 with its two ends is placed on the second housing part 44 and in particular on the lower half of the second mounting surfaces 52. Next, the first housing part 42 is mounted on the second housing part 44, the spindle nut 34 being arranged such that it comes into contact with its two ends with in each case one of the first mounting surfaces 50 of the first housing part 42. The two housing pieces 42, 44 are then joined together, for which any suitable type of joint can be used, for example, ultrasonic welding, laser welding, stapling, retouched, hot-set or crimped.

In Figures 3a) and 3b) a second embodiment of the gear 122 according to the invention is shown. Also in this exemplary embodiment, the gear housing 40 has the first housing part 42 and the second housing part 44. However, in this exemplary embodiment, the second mounting surface 52 for the drive screw 30 is completely formed by the second housing part 44, while the first mounting surface 50 for the spindle nut 34 is formed in each case in half by the first housing part 42 and by the second housing part 44. In this regard, the first housing part 42 has first shape drag means 54 and the second housing part 44 second shape drag means 56, the first shape drag means 54 being configured as transverse ribs 58, which in the assembled state is engaged in corresponding notches 60 of the second housing part 44.

In Figures 4a) and 4b) a third embodiment of the gear 123 according to the invention is shown, in which the first housing part 42 has a first lower cover 62 and a second lower cover 64. The first lower cover 62 and the second lower cover 64 have the same construction and have first positioning means 66, which in the example shown comprise two pins 68, which in the assembled state are engaged in a corresponding number of perforations 70. The two lower covers 62, 64 have additional pins 72, which run perpendicular to the pins 68 and on which the second housing piece 44 configured in the form of a cover can be placed in the joined state of both lower covers 62, 64, to fix on relation to each other the two lower covers 62, 64. In this exemplary embodiment, the first mounting section 46 and consequently the first mounting surface 50 is completely formed by the first housing part 42, while the second mounting surface 52 is formed in each case in half by first housing part 42 and by the second housing part 44.

In Figures 5a) and 5b) a fourth embodiment of the gear 124 according to the invention is shown, the first housing part 42 being formed in turn by the first lower cover 62 and by the second lower cover 64. However, the lower covers 62, 64 are constructed somewhat differently compared to the third embodiment. There is only one pin 68 per bottom cover 62, 64, while instead of the second pin a tongue 74 is provided, which in the joined state is engaged in a groove 76 correspondingly shaped.

The second housing part 44 has a first body 78 and a second body 80, which are provided with second positioning means 81. In this exemplary embodiment, the second positioning means 81 comprise two pins 82, which are arranged on the first body 78 and are engaged in a corresponding number of perforations 84 of the second body 80. Therefore, the first and second body 78 , 80 do not have the same construction.

The first lower cover 62 and the second lower cover 64 together form the first mounting section 46 and the first body 78 and the second body 80 form in each case one of the second mounting sections 48.

The two lower covers 62, 64 have the first shape drag means 54, which are configured in this case as interlocking arms 86. The second shape drag means 56 are configured as projections 88 on the first and second body 78, 80. For assembly the first body 78 and the second body 80 of the second housing part 44 are joined together in such a way that the drive screw 30 is loosened in the second mounting sections 48. Next, the first lower cover 62 and the second lower cover 64 are joined together so that the spindle nut 34 is mounted in the first mounting section 46. Finally, the second housing part 44 is placed on the first housing part 42. In this regard, the interlocking arms 86 engage the projections 88 behind, thereby creating a connection with a drag.

In figures 6a) and 6b) a fifth embodiment of gear 125 according to the invention is shown, which presents a construction similar to that of gear 124 according to the fourth embodiment (see figure 5). However, there is no first means 54 for dragging. Instead, the first and second body 78, 80 have elevations 90, which in the mounted state are engaged in a window 92 of the respective lower covers 62, 64. Consequently, although the first and second body 78, 80 are positioned relative to the respective lower covers 62, 64, they are not fixed in this situation. The lower covers 62, 64 have the same construction, the first positioning means 66 comprising two pins 82, which in the assembled state are engaged in a corresponding number of perforations 84 in the in each case another lower cover 62, 64.

In figures 7a) and 7b) a sixth embodiment of the gear 126 according to the invention is shown, which presents a construction very similar to that of the embodiment shown in figure 6. However, in this case, the two covers 62, 64 lower are not made with the same construction, but the second lower cover 64 has four pins 82, which are engaged in four perforations 84 of the second lower cover 64.

10 regulation device

12, 121-126 gear

14 retention plate

16 top rail

18 clamping tab

20 drive motor

22 drive shaft

24 lower rail

26 threaded spindle

28 retention element

30 drive worm

32 worm gear

34 spindle nut

36 spindle nut gear

38 internal thread

40 gear housing

42 first piece of housing

44 second housing piece

46 first assembly section

48 second mounting section

50 first mounting surface

52 second mounting surface

53 additional mounting surface

54 first drag means 56 second drag means 58 transversal rib

60 notch

62 first bottom cover

64 second bottom cover

66 first positioning means 68 pin

70 drilling

72 additional spike

74 tab

76 notch

78 first body

80 second body

81 second positioning means 82 pin

84 drilling

86 interlocking arm

88 highlight

90 elevation

92 window

D diameter

E extension

Claims (1)

1. Gear for a regulation device (10) in vehicles to regulate two pieces of vehicle that can be adjusted to each other, in particular to regulate two pieces of a seat adjustment device, a window regulator or a sunroof, comprising the gear - a drive screw (30) that can be operated with a toothed screw (32), and - a spindle nut (34), which has a spindle nut (36) toothed, which is engaged with the cogwheel (32) with an endless screw, and an internal thread (38), with which the nut (34 ) of the spindle can be engaged with a spindle (26) threaded from the regulating device (10), - by mounting a gear housing (40) mounted on the endless drive screw (30) and the spindle nut (34), characterized because - the spindle nut (34) is composed at least partially of metal and the screw (30) of plastic drive end and - the gear housing (40) comprises a first plastic mounting section (46) (34) of spindle and a second metal mounting section (48) for mounting the endless screw (30), the gear housing (40) presenting a first piece (42) of plastic housing and a second piece (44) of metal housing, the first assembly section (46) being formed totally or partially by the first housing part (42) and the second assembly section (48) totally or partially by the second housing part (44) . 2. Gear according to claim 1, characterized in that - the second mounting section (48) has at least one extension (E), which is equal to or greater than the maximum diameter (D) of the endless screw (30). 3. Gear according to one of claims 1 or 2, characterized in that the first housing part (42) can be inserted into the second housing part (44) to configure a joint or vice versa. 4. Gear according to claim 3, characterized in that the first housing part (42) has first shape drag means (54) and the second housing part (44) second shape drag means (56), which engage each other with dragging form to configure the union. 5. Gear according to one of the preceding claims, characterized in that the first housing part (42) comprises a first lower cover (62) and a second lower cover (64), with at least one of the first lower means covers (66) of positioning to position the first lower cover (62) in relation to the second lower cover (64). 6. Gear according to claim 5, characterized in that the first lower cover (62) and the second lower cover (64) can be secured together by means of the second housing part (44). 7. Gear according to one of claims 5 or 6, characterized in that the first lower cover (62) and the second lower cover (64) have the same construction. 8. Gear according to one of the preceding claims, characterized in that the second housing part (44) comprises a first body (78) and a second body (80), with at least one of the second means (78, 80) having second means ( 81) positioning to position the first body (78) in relation to the second body (80). 9. Gear according to claim 6 or 8, characterized in that the first and / or second positioning means (66, 81) are spikes (68, 82) and perforations (70, 84) that correspond thereto. 10. Gear according to claim 8 or 9, characterized in that the first body (78) and the second body (80) have the same construction. 11. Device (10) for regulating vehicles to regulate two pieces of vehicle that can be adjusted to each other, in particular to regulate two parts of a device (10) for adjusting a seat, a window regulator or a sunroof, being connected firmly a screw spindle (26) threaded with the first of the vehicle parts and the gear device (10) presenting a gear according to one of the preceding claims, whose spindle nut (34) is engaged with its thread (38) internal with threaded spindle (26) and whose housing (40) of The gear is connected in a resistant manner to the regulation with the second of the vehicle parts in their direction of regulation. 12. Vehicle seat of a vehicle, which can be adjusted by means of a regulating device (10) according to claim 11.